Bandit Alley
MODEL SPECIFIC => SUZUKI BANDIT 250 & 400 => Topic started by: greatmoorred on April 20, 2008, 05:12:56 PM
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Im having trouble with my B4.
Last week i replaced the rear shock, which obviously requires the removal of the tank. This week when i started the old girl up i notice she is only firing on 2 cyliders: No.3 and No.4.
I have taken the plug out of No.1 and it is sparking just fine, so its not an electrical fault ( it would affect 1 and 3 wouldn't it ? )
So, im thinking maybe i reconnected one of the three hoses under the tank incorrectly. There seem to be 2 breather hoses and a fuel hose, would replacing the breathers hoses the wrong way cause the bike to run badly ?
Any ideas please ??
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just so everything is clear.. did you take out the plugs? they are wired 1-4 and 2-3 if i remember correctly.. how do you know that they are not working?
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Yep, ive had 1 and 2 out and ran the bike, the plugs were sparking, so it doesnt seem to be a problem with them.
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have you tried running the bike with out 3,4?
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fuel line then little vacum line to fuel valve the rest are not essential
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Tried running the bike with plugs 3 and 4 disconnected and it wouldnt start.
Ive removed the tank and reconnected the hoses, i assume the hose that goes to the carb' body connects to the back of the petcock valve ?
Anyway, there is still no joy :annoy:
This is very annoying as it was working upto last week when i took the tank off..........
If i turn up the idle screw i can get it to tick over on just the 2 cylinders, so i think i might have to bite the bullet and take it to a garage.
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fuel line connect if you follow it connects near the bottom of carbs
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Do you have the plug wires on the right plugs?
If the #2 lead is on the #1 plug and vice versa, the plugs will still spark, but not at the right time.
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Thats food for thought brother :stickpoke:
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Yes, all the HT leads are married up to the correct plugs.
Its a mystery. :sad:
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carb cleaning time
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:monkeymoon:
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I wish i wqas more observant !
Just got off the phone to my mechanic, he reckons a new coil and leads/plugs. He thinks the coils are Left side #1 and 2 Right side #3 and 4
Im sure the coils on mine are left coil goes to 1 and 4 right coil goes to 2 and 3.
Help me people..... Has a previous owner messed about with this ? What is the correct setting.
Left coil Cylinders ? and ?
Right coil cylinders ? and ?
thanks for any help.
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left coil 1 and 4 right coil 2 and 3
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fire the mechanic all in line fours go 1-4 and 2-3 :duh:
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If you need new coils, I have a spare set I'm selling (both pairs). Let me know!
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If i was reccomending new coils id say get some from a 2006 bandit 650 so they are as new as possible. Only slight annoying bit about them is only one bolt can be used on the frame to hold it on.
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you should clean and tighten the coil connections they come loose i had a problem with this.
you have to remove the tank to replace the rear shock? im doing mine soon and i cant be arsed with that like.
i thought if i put it on the centre stand and pulled the back wheel out id be able to get at it ok.
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Something about a secondary coil ???
Never heard of it myself..
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Maybe the pick up coil.
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bad pick up coil no spark at all :boohoo:
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Sorted.
It was the carbs after all that. I sort of suspected it might be, but i was hoping it wasnt, due to that being tricky to fix. Anyway, its been to the garage and had its carbs stripped and cleaned/balanced a new rear tyre and an MOT ( A uk thing ) which has set me back nearly £250.... a bit of a bitch, but i spent nothing on it last year.